Six on Saturday: Gophers and Weeds

 

Both have been very active all spring. Some of the sneakiest have been getting away with their activity unobserved.

1. This is a fifteen foot tall camellia, or what remains of it. For comparison, that is a six foot long bench it is laying on. It still looks green and healthy, but started leaning. Upon closer examination, I found that it was not rooted to the ground. It pulled right out! The roots were almost completely gone! There was no indication that there was a problem.P90615

2. This is what remained of the root system. Gophers ate through just about everything that was sustaining and supporting the big camellia above. No excavation or gopher mounds were observed. The area around the camellia was obscured by Algerian ivy. This all happened faster than the camellia could express symptoms associated with such damage.P90615+

3. ‘Kramer’s Supreme’. More specifically, “Award Winning – ‘Kramer’s Supreme’ – Camellia japonica – Trade Mark Registered”. Someone should have removed the label before it damaged the stem it was attached to. Actually, the long dead stem was stubbed just a few inches above the upper margin of this picture. It doesn’t matter now anyway.P90615++

4. This big mound of greenery is all a single big weed, perennial pea. I put it next to the wheel for comparison of size. It grew in a newly landscaped area where we did not expect such big weeds to grow so quickly. It did not seem to be as big as it is, so was easily ignored. Why didn’t gophers eat this instead of the now dead camellia above?!P90615+++

5. As you can almost see in the bad picture, perennial pea is not an unsightly weed. It also lays low and fits into the landscape in such a manner that it is easy to ignore while targeting more obtrusive weeds elsewhere. That is how the specimen in the picture above got so big. This one is not nearly as big, but overwhelmed a few smaller perennials.P90615++++

6. Perennial pea flowers are quite pretty. If possible, I like to let them bloom before pulling them up. Most look like these. Some bloom with fluffier double flowers. Some are lighter pink. A few are darker purplish. White is quite rare. As prolific as they are where they are not wanted, they are surprisingly unreliable from seed sown where actually desired.P90615+++++

This is the link for Six on Saturday, for anyone else who would like to participate:

https://thepropagatorblog.wordpress.com/2017/09/18/six-on-saturday-a-participant-guide/

Horridculture – Pesticides

P90612‘Cide’ as a suffix that designates something to be killed. ‘Insecticide’ kills insects. ‘Miticide’ kills mites. ‘Molluscicide’ kills molluscs such as snails and slugs. ‘Herbicide’ kills herbaceous plants, which are presumably weeds. These examples and other chemicals that kill things that are considered to be pests are collectively known as ‘pesticides’. Many are potentially useful in the garden, since that is where so many familiar pests are problematic.
Most modern pesticides are designed for physiological characteristics that are unique to the targeted pest. They therefore kill only very specific pests, but are generally harmless to other organisms. For example, horticultural oil, which is one of the simplest of all insecticides and miticides, kills insects and mites by obstructing the exoskeletal pores through which they respire. It is harmless to those of us who conduct respiration by means of lungs.
In fact, most (although not all) commonly available pesticides, if used properly, are relatively safe for those who are not the targeted pests. (Rodenticides that remain toxic to predators who eat afflicted rodents are some of the exceptions, but that is a topic for later.) That is why I have no compunction about using such pesticides. When necessary, I would use them on the farm, in the landscapes that I so often work in, or in the home garden.
However, such pesticides are almost never necessary. Seriously. I would not refrain from using them, but the need for such use almost never presents itself. Insecticides and, to a much lesser extent, miticides are sometimes applied on the farm (although I have not been there to apply any in a few years). I applied a minor fungicide for rust on English daisies in a landscape more than a year ago. Otherwise, pesticides are almost never necessary.
It is not that there are no pests. There most certainly are. Roses get aphid. Rhododendrons get thrip. Snapdragons get rust. We just deal with such pests without much pesticides.
There are so many alternative horticultural techniques to use instead. We prune roses so aggressively in winter that they regenerate faster in spring than the aphid can keep up with. We prune rhododendrons to eliminate much of the congested and sheltered inner growth where thrip tend to proliferate. Snapdragons are so susceptible to rust that we probably will not grow them again. Pests are not eradicated, but are reasonably controlled.
All too often, the problem with pests is not the pests at all, but improper horticulture.

A Bee See

P90609They were impossible to miss. They came at a weird time too.
As guests were arriving for a big event, a fire alarm was activated, and compelled everyone to leave the building that they were gathering in. The swarming bees met the guests as they came outside. The bees just happened to show up in the same place and at the same time as the guests were forced outside. Fortunately, no one seemed to mind, and some found the swarming bees to be compelling enough to stop and take pictures.
Initially, all the bees were flying in a big swarm. Those closest to the middle of the swarm were flying fast, sort of like angry wasps. No one saw the queen that the swarm was centered around, but she apparently landed on this redwood limb about forty feet up. The swarming bees slowly collected in this mass around the queen. By the time I took this picture, almost all were attached to the mass, with only a few still flying about.
At least three swarms started to establish new hives in buildings near here last year, and needed to be removed by beekeepers. One hive started to develop where another had just been removed. Another swarm was removed before establishing a new hive.
Bees seem to be attracted here. Perhaps they appreciate all the flowers in the landscapes. It is unfortunate that they can not stay where they typically try to move in. Most of us really like them.
This swarm was still here when I left, so I do not know what happened to it afterward. Hopefully, it either left the area, or at least moved into a place where it will not be problem, such as in a rotten tree trunk out in the forest where bees belong.

 

Paris Daisy

P90608KNo, this is not a Paris daisy. It is a common euryops daisy, Euryops pectinatus. It is obviously related, but the flowers are bright yellow rather than clear white with yellow centers, and the foliage is darker green. It is more resilient, so became more common in landscapes as quickly as mow, blow and go ‘gardeners’ replaced real gardeners who actually know something of horticulture. There is certainly nothing wrong with it. It is just cliché.

The few remaining Paris daisies are fancier cultivars of the old fashioned traditional sort anyway. Some bloom pale pink. Some bloom pale yellow. Flowers might have fluffy centers of the same color. Foliage might be pale grayish green. Plants are more compact. The cultivar that most closely resembles the old Paris daisy has more profuse, but smaller flowers. The cultivars are all quite nice, but are not quite the same as what we remember.

The original Paris daisy, Chrysanthemum frutescens, which is now known as Argyranthemum frutescens, was the sort of flower you wore in your hair if you were going to San Francisco in the late 1960s, or according to my memory, in the very early 1970s. It looked just like the three plastic daisies in the upper right (or lower left) corner of those cool AstroTurf door mats that were so popular. Perhaps they were cliché for their time too.

Cuttings rooted in half pint mason jars on kitchen windowsills to replace older plants. Our mothers grew them in the garden, supposedly to repel the bad insects, and attract the good insects to eat the bad ones who did not take the hint. In that regard, Paris daisies were how young horticulturists learned about vegetative propagation and ‘integrated pest management’ (IPM). They were so familiar back then; but then disappeared by the 1990s.

Only recently, Brent, my colleague in the Los Angeles region who I so frequently mention (typically in a disparaging manner) found just two specimens at a nursery in Southern California, and promptly procured both. One if for his garden, and one is for mine!

Six on Saturday: Off Schedule

 

Every year is different. The weather is different. Bloom times are different. Growth rates are different.

1. Asiatic lily. This is one of five that were planted late enough last winter to be blooming right now, after others have finished. I would not have planted them so late, but that was when one of the neighbors shared them. They are a different color of the same sort of lily as the rose lily that was also blooming late last week.P90608

2. Peruvian lily. It seems to me that they were only beginning to bloom by this time last year. This year, they started blooming sparsely more than a month ago, and were blooming as profusely as they are now more than two weeks ago. There are pink and peach Peruvian lilies here too. I showed them off last years. (A peach flower can be seen out of focus at the bottom of the picture. A pink flower can be seen out of focus at the lower left corner of the previous picture #1 of Asiatic lily.P90608+

3. Rhododendron. Some bloom early and get battered by winter weather. Some bloom late and might get slightly roasted in the arid air of late spring. This one always bloom late like this, and has no problem with the weather. I do not know what cultivar it is. It certainly seems happy.P90608++

4. Dahlia. #1 Asiatic lily bloomed late. #2 Peruvian lily bloomed early. #3 rhododendron bloomed late. This dahlia did both. Dahlias typically only begin to bloom late in June. As you can see, this one already bloomed. I would not have shared this bad picture of a deteriorating early bloom, but was impressed that it bloomed at all. You see, it was dug and stored TWO winters ago, and then forgotten about. It somehow survived in storage through last year. I found it late last winter, and after determining that part of it was actually still viable, buried it right behind the lilies #1. It grew as if nothing had ever happened, and bloomed a year late and a month early. It has nice buds on in, so should resume bloom right on schedule, and continue to frost.P90608+++

5. Boston ivy. Four were planted over winter to climb a concrete retaining wall and a pair of concrete pillars supporting a bridge. The plan is to remove the Algerian ivy that hangs down over the retaining wall as it is replaced by the Boston ivy climbing up from below. I do not want to remove the Algerian ivy until necessary. I just want to keep it out of the way. I did not expect the Boston ivy to start growing like a weed so early. I cut the Algerian ivy farther to the left after getting this picture.P90608++++

6. Flowering cherry. Two plants; above were early. Two were late. One was both early and late. Well, this one won’t break the tie. These flowering cherries bloomed on time and are well foliated as they should be. In fact, they are better foliated and healthier than they have been in several years. They were so unhealthy last year that we had planned to cut them down and replace them by now. We just have not done so because we have not found replacements for them yet. Therefore, we are late; but it is not their fault. If it were at all possible, I would not remove them.P90608+++++

This is the link for Six on Saturday, for anyone else who would like to participate:

https://thepropagatorblog.wordpress.com/2017/09/18/six-on-saturday-a-participant-guide/

Horridculture – Fruity Fads

90417Pluots, plumcots, apriums and peacharines! Who comes up with this stuff?! Aren’t good old fashioned plums, apricots, peaches and nectarines good enough? Who decides that these weird hybrids are somehow better than their parents? Some of them are actually quite weird, or downright ugly. Several do not even look like they would taste good. It may be an acquired taste; but I have all the good taste that I need without acquiring any more.
Some old classic cultivars (cultivated varieties) of fruit were develop centuries ago. More have been evolving from those ancestors since then. Some were intentionally bred from parents with desirable qualities. Others just grew incidentally where their seed fell, and were found to be somehow better than their parents. Some were merely discovered as natural occurring mutants, and perpetuated for their superior qualities. It is a slow process.
So, putting two different kinds of fruits together, or finding an aberration of a single type of fruit, is nothing new. Tangelos were created by hybridizing Mandarin oranges with pomelos or grapefruits. Ever-bearing ‘Eureka’ lemon was perpetuated from a mutant of the seasonally bearing ‘Lisbon’ lemon. This is how cultivars evolve and develop. Generally, newer cultivars become popular because they are somehow superior to their ancestors.
Yes, somehow ‘superior’ to their ancestors. Who decided that a hideous hybrid of a plum and an apricot was somehow better than either a perfectly good plum or apricot? Furthermore, what evidence was there for such a weird claim? Even farthermore (if that is a word) how and why do so many people believe this evidence?
I was still growing citrus (trees not fruit) back in the early 1990s when the ‘Cara Cara’ pink orange was popularized. Yeah, a ‘pink’ ‘orange’. It is really just a pink mutant of the formerly more popular ‘Washington’ navel orange. We could not grow enough of it. It was just too popular. Some people really seem to believe that it is somehow better than ‘Washington’ and other navel oranges. I can’t argue. They certainly know what they like.
To me, it has a milder flavor than ‘Washington’. Yes, it tastes about as bland as it looks; pink.90320thumb

Aw NUTS!

P90602Not just any nuts, but precisely the sort that I recently discussed with a colleague, as I explained how they do not grow here. The nuts that is. The big thicket forming shrubs that are supposed to produce them not only grow here, but are a relatively common native. I just rarely see even a single nut on them. I sort of wondered how they mange to procreate with such rare seeds that invariably get taken by unconcerned rodents or birds.
They are the beaked hazelnut, Corylus cornuta. You can see why they are known as such. The elongated nut husks look like Big Bird. The very rare nuts within are quite small with good rich flavor, like hazelnut concentrate, and develop only on the biggest and most distressed old hazelnut shrubs.
However, the young and healthy hazelnut shrub that produced the nut in this picture actually produced quite a few. They were just not close enough to each other for me to get more than one in a picture. A few other young and healthy hazelnut shrubs are doing the same at the same time. There are more hazelnuts now than I have seen collectively in many years. I can not explain why.
Some species of oak tend to produce an overwhelming abundance of acorns every several years or so, only to limit acorn production for the several years in between such abundance. All trees of the same species within a region somehow know to do this collectively at the same time. They do not do it often, but when they do, they do it together.
The oaks who do this supposedly produce just enough acorn to sustain a healthy squirrel population without promoting overpopulation. When they occasionally produce an excess of acorns, the squirrels instinctively bury many more acorns than they normally would, just because the acorns happen to be available. Since the squirrels can not consume all that they bury, many more stay buried to germinate and grow into trees later.

Rose Lily

P90601KWhat a delightful surprise! It happens sometimes here in the rose garden. It may not look like much, as a short stemmed single lily floret that is mostly overwhelmed by the English lavender that I held back with my boot for this picture. It should be three feet tall or so, with several florets. The surprise is that no one planted it. Well, at least no one planted it recently. This rose garden has more history than is obvious from what blooms here now.
Old pictures show that it was formerly an extravagant perennial bed, with an abundance of canna, dahlia, penstemon, pelargonium, Shasta daisy, Japanese anemone, various iris, and of course, various lilies. Lower annuals were cycled through the seasons at the front edge. Only a few roses bloomed against the low wall at the rear. Soil was likely regularly amended with compost and fertilizer. Someone put significant effort into maintaining it.
Nearby redwoods appreciated all the effort, and extended their roots into the fertilized, richly amended and regularly irrigated soil. Their growing canopies extended over and shaded the upper portion of the perennial bed so that all but daylilies and Japanese anemone were replaced with ferns. Perennials that got dug and stored for their dormant seasons were later installed elsewhere as it became obvious that they would not be happy here.
Because the few roses did not seem to mind the redwood roots, a few more, as well as English lavender, were added in informal rows to replace deteriorating perennials. Annuals require more effort than they did originally, but are still cycled through the seasons in a narrow row at the front edge. The rose garden now seems to have always been here, as if intentionally planned. Every once in a while, we find reminders of extravagant history.

Six on Saturday: Oh, The Shame!

 

Not my shame of course; but that of the trees in the pictures below.

Do not try this at home. I only did it because I am a horticulturist and arborist; and I happen to be one of the last arborists in America who condones coppicing and pollarding, which are depicted here.

Coppicing is cutting trees or shrubbery down to the ground annually, or at least regularly every few years or so. Some coppiced trees form basal burls or lignotubers. Some just form thicket growth that replaces itself after getting coppiced back to the ground.

Pollarding is similar to coppicing, but rather than cutting all growth back to a stump or stumps at ground level, it involves pruning all growth back to the same distended knuckles at the ends of a few main limbs annually, or at least regularly every few years or so. It is done in such a manner that the pruning wounds are compartmentalized by the new growth of the following year. Knuckles can be elongated by leaving single short stubs.

There are a few reasons for coppicing and pollarding. Some subjects develop an abundance of appealingly lush foliage. Some develop an abundance of appealing or useful twiggy growth. Coppiced red twig dogwoods are much twiggier and more colorful while bare in winter. Pollarded or coppiced willows produce an abundance of canes for basketry. White mulberries are pollarded to provide an abundance of lush foliage to feed silkworms.

I coppiced a Eucalyptus globulus ‘Compacta’ and pollarded a Eucalyptus globulus for two main reasons. Both are such problematic trees that I do not want to plant either into the ground, so must keep them contained. Also, I want the remarkably aromatic juvenile foliage that develops in response to coppicing and pollarding.

1. Eucalyptus globulus ‘Compacta’ coppiced stump. It is not such a great example of a coppiced stump, since the tree did not grow enough two years ago to get coppiced last year. Consequently, the few main trunks that were just recently coppiced are already starting to form their own separate lignotubers on top of the original, which is now rotting below. Soon enough, they will fuse to form a single lignotuber, concealing the evidence.P90601

2. Eucalyptus globulus ‘Compacta’ before getting coppiced. It is quite small for a specimen that was not coppiced last year.P90601+

3. Eucalyptus globulus ‘Compacta’ after getting coppiced. Rhody is not impressed.P90601++

4. Eucalyptus cinerea in need of pollarding. This tree grew too big too fast to survive any longer in the relatively small #15 (15 gallon) can. Fortunately, in just a few days, it will instead get installed into a landscape where it can disperse roots and mature into a normal unpollarded tree. After a few years, it might get pollarded anyway, just to produce silvery juvenile foliage withing reach of the ground, but that is not a concern just yet.P90601+++

5. Eucalyptus globulus pollarded knuckle. This is only the second pollarding procedure for this subject. The first procedure involved lopping the lanky single trunk off right here where the knuckle is now. The multiple limbs that developed were just recently lopped off, leaving this distended knuckle to repeat the process, hopefully annually.P90601++++

6. Eucalyptus globulus pollarded trunk. This is why Eucalyptus globulus should not get pollarded! They look ridiculous if deprived of their naturally elegant form. They do not look much more dignified with multiple pollarded limbs. Oh, the shame!P90601+++++

This is the link for Six on Saturday, for anyone else who would like to participate:

https://thepropagatorblog.wordpress.com/2017/09/18/six-on-saturday-a-participant-guide/

Horridculture – Unpruned Fruit Trees

P90529They do not come with instructions for their maintenance. Deciduous fruit trees, particularly the stone fruit trees (such as cherry, plum, prune, apricot nectarine and peach) and pomme fruit trees (such as apple and pear), can be procured as easily as nasturtium seed or petunias. Whether bare-root in winter or canned (potted), they very often get planted into gardens where they are expected to produce their fruit as easily as daisies bloom.
Instructions for planting that come with bare root stock are useful for getting those particular trees started, but mention nothing about how even brand new trees need to be pruned after installation, and will need specialized pruning annually every winter thereafter. The same applies to rose, raspberry, blackberry (all varieties), grape, and to a lesser extent, fig, pomegranate, persimmon and several other fruit producing trees, vines and shrubs.
The problem with the stone fruit and pomme fruit trees is that they were bred to produce an unnatural abundance of unnaturally large fruits that are too overwhelming to sustain as they ripen, and too heavy to support. The others are in a similar situation, but are somehow able to continue to produce and generally support their own weight as they get overgrown and congested. Roses deteriorate and succumb to disease as they get congested.
This is why annual winter pruning is so important. Such pruning concentrates resources into fewer but superior fruits, rather than too many inferior fruits. It also limits and contains (closer to the main trunk and limbs) the weight of the fruit, so that limbs are not so likely to break as fruit develops.
These wimpy stems hanging vertically from the weight of the maturing apricots might be able to support the weight of the fruit, but the excessive fruit will be of inferior quality.P90529+